Line-casting mold



a 1934- L. GEISERT 1,941,679

LINE CASTING MOLD Filed Sept. 20, 1932 3 Sheets-Sheet l Jan. 2, 1934.

L. GEISERT LINE] CASTING MOLD Filed Sept. 20, 1932 3 Sheets-Sheet 2 Ewen/$71 Jan. 2, 1934. 1.. GEISERT 1,941,679

LINE CASTING MOLD Filed Sept. 20, 1932 3 Sheets-Sheet 3 lToc/erz) Patented Jan. 2, 1934 UNITED STATES LINE-CASTING MOLD Lewis G eisert, Philadelphia, Pa.

Application September 20, 1932 Serial No. 634,028

8 Claims.

This invention relates to improvements in linecasting machines, and relates more particularly to the molds which form an essential element of machines of this character.

6 A principal object of the invention is to provide a novel and efficient mechanism for facilitating the interchange of liners in the mold of a line-casting machine.

Another object is to provide improved means for manipulating the mold cap for the purpose of replacing the mold liners and for holding the mold cap in position.

To these general ends, another object of the invention is to provide a mold including means for locking the mold cap in position, which means also constitutes a device for adjusting the cap to permit replacement of the liner elements.

Still another object of the invention is to provide a mold cap locking and adjusting device which shall be generally free from the numerous disadvantages of the prior means for locking the cap in position and which shall have the effect of increasing the useful life of the mold parts.

The invention further resides in certain novel structural features and details hereinafter set forth and illustrated in the attached drawings, in which:

Figure 1 is a face view of the mold disk of a linotype machine provided with molds made in accordance with my invention;

Fig. 2 is an enlarged fragment, partly in section, of the disk and mold assembly shown in Fig. 1;

Fig. 3 is a section on the line 33, Fig. 2;

Fig. 4 is a fragmentary view of a disk and mold assembly illustrating a modification within the scope of my invention;

Fig. 5 is a section on the line 55, Fig. 4;

Fig. 6 is a view in perspective of one of the elements of the mechanism shown in Figs. 4 and 5;

Fig. 7 is a fragmentary View of a disk and mold assembly illustrating a still further modification of my invention;

Fig. 8 is a section on the line 88, Fig. 7;

Fig. 9 is a section on the line 99, Fig. '7, and

Fig. 10 is a section on the line 10-10, Fig. '7.

With reference to Figs. 1 to 3 of the drawings, the reference numeral 1 designates the mold disk of a line-casting machine of well known type,

to the face of which are secured in the usual manner a plurality of molds 2. Each mold comprises a relatively fixed body member 3 and a cap 4, between which members is formed the elongated recess or chamber 5 in which the molding operation occurs. Liners 6 are employed for spacing the mold body and cap apart to provide a mold chamber or recess of desired length and thickness, these liners, of which there are a number of different sizes, being interchangeable one with another, it being understood, however, that individual liners are required for the respective right and left-hand ends of the mold. Insofar as described above, the construction is substantially standard and will be readily understood by those familiar with the art.

In the present instance and in accordance with my invention, each mold cap 4 is provided at each end with a projecting bifurcated lug '7, the bifurcations providing recesses ior reception of the heads of screws 8. These heads are so formed that the screw is held between the said bifurcations against rotation and so that the screws are securely anchored to the caps. As shown in Fig. 2, the threaded portion of each of the screws is embraced by a nut 9, each' nut being rotatably anchored in a journal formed between two plates 11 and 12, see Fig. 3, which plates are secured by means of screws 13 to the disk 1. Each of the nuts 9 has formed at one end a worm wheel 14, which wheel meshes in each instance with a worm 15 journaled at 16 in the disk 1, see Fig. 3, and held in position by a clamp 17 which is secured by a screw 18 to the disk 1. Each of the worms 15 has in its upper exposed end a socket 19 for reception of a wrench whereby the worm may be turned to actuate the worm wheel 14 and the associated nut 9. Such rotation of the nut 9 must necessarily result in an axial movement of the associated screw 8 and an adjustment of the corresponding end of the mold cap 4. It will be apparent that by means of a pair of wrenches to actuate the worms at the opposite ends of any one of the molds, the cap 4 may be adjusted toward and from its mold to release the liners 6 or to clamp them firmly in position as required.

While independent wrenches may be employed to actuate the screws 8 at opposite ends of the respective mold caps, I have provided a device, illustrated in Figs. 4, 5 and 6, which may be employed in lieu of the independent wrenches mentioned. The device consists of a bracket 21 in which is journaled a shaft 22. At each end, the shaft carries a bevel pinion, 23 and 24, respectively, which mesh with pinions 25 and 26 journaled in the bracket. The projecting ends 27 of the pinions 25 and 26 are formed, as shown in Fig. 6, to fit the sockets in the worms 15, and the pinions are so relatively positioned that, as shown in Fig. 5, the projecting ends 27 thereof may be entered simultaneously into the sockets of the worms 15 at the opposite ends of any one of the molds. When so inserted, rotation of the shaft 22, through the medium for example of a wrench head 28 secured at the mid portion of the shaft, must result in a synchronized actuation of the feed screws 8 of the associated mold cap.

In the embodiment illustrated in Figs. '7 to 10, inc1usive,,the bifurcated lugs 7 at the ends of the mold cap 4 engage in slots in members 31 slidably guided in recesses 32 in the disk 1. Each of the members 31 has a slotted opening 33 through which extends the hub element 34 of a cam wheel 35, the said hub element as shown in Fig. 8 extending into a journal recess in the disk 1. The member 31 also has a boss 36 which projects into an eccentric cam slot 37 in the under side of the associated cam 35, the arrangement being such that rotation of the said cam results in a longitudinal movement in its guide slot of the member 31 and a consequent adjustment of the cap 4. The cams 35 and members 31 are held in position by means of cap plates 38, and each of the cams is provided in its exposed face with a socket 39 for reception of a wrench, through the medium of which the cam may be rotated about its axis. A tool similar to that shown in Figs. 4 and 5 and previously described may be utilized for simultaneously rotating the cams associated with the opposite ends of any one of the mold caps 4.

It will be apparent from the foregoing description that I have provided an extremely simple, durable and efficient means for maintaining the mold caps in desired position and for adjusting these caps to permit replacement of the liner elements 6 for various sizes of type slugs or lines.

The device entirely avoids the necessity for weakening the disk structure by boring the latter for the screws previously used for clamping the mold caps in position; and similarly avoids the 'necessity for the use of screw-drivers to first loosen these screws, and thereafter to wedge the mold cap from the position in which it is normally clamped. The device also avoids any necessity for removing the mold cap in order to re- I place the liner elements, so that danger of damage to the cap during frequent removals is avoided.

The operation of adjusting the mold cap to release or clamp the liners in position with the a use of one or more simple wrenches materially facilitates the operation, and by reason of the elements constituting permanent parts of the assembly, there is no danger of loss or damage in their manipulation. Losses of time in the lineri changing operations are materially reduced by my device and production correspondingly increased. Furthermore, the fact that the mold cap is positively elevated from the mold and retained in the elevated position during the interchange of liners eliminates much of the possibility of damage to the liners, which has been an undesirable feature of the prior devices.

It will be understood that there may be further modification of the device without departure 1 from the invention as defined in the appended claims.

I claim:

1. In a line-casting machine, the combination With the mold, mold cap and liners, of mechanism constituting both means for locking said cap in operative relation to the mold and to said liners and for adjusting said cap to permit replacement of said liners, said mechanism comprising a member movable with the mold cap,

7 placement of said liners, said mechanism comprising a feed screw secured at each end of said cap, an axially fixed nut engaging each of said screws, and means for rotating said nuts to advance and retract the said screws.

3. In a line-casting machine, the combination with the mold, mold cap and liners, of mechanism constituting both means for lockin said cap in operative relation to the mold and to said liners and for adjusting said cap to permit replacement of said liners, said mechanism comprising a feed screw secured at each end of said can. an axially fixed nut engaging each of said screws, and means for simultaneously and synchronously rotating said nuts to advance and retract said screws.

4. In a line-casting machine. the combination with the mold, mold cap and liners, of mechanism constituting both means for locking said cap. in operative relation to the mold and to said liners and for adjusting said cap to permit replacement of said liners. said mechanism comprising a feed screw secured at each end of said can, an axially fixed nut engaging each of said screws, a worm wheel on each of said nuts. a worm meshing with each of said wheels, and means for rotating said Worms.

5. In a line-casting machine, the combination with the mold body. mold cap and mold liners, of mechanism for locking said cap in operative position with respect to said body and liners and for adjusting said cap to release or clamp said liners in position, said mechanism comprising slides respectively engaging opposite ends of said cap, means for guiding said slides in predetermined parallel paths, and cam means operatively associated with said slides and constituting a means for advancing and retracting said slides in their respective guides.

6. In a line-casting machine, the combination with the mold disk, of a mold body secured to said disk, a mold cap adjustable to and from the body, and liner elements adapted to be clamped between the body and said cap and defining therewith the mold chamber. means for adjusting said cap to release said liners and to clamp them in position upon the mold. said adjusting means comprising. an element engagin each end of said cap, means operatively associated with each of said elements for advancing and retracting them in predetermined parallel paths to thereby adjust the cap, and a common actuating means for said advancing and retracting means.

7. In a line-casting machine, the combination with a mold. mold cap and liners. of mechanism constituting both means for locking said cap in operative relation to the mold and to said liners and for adjusting said cap to permit replacement of said liners. said mechanism comprising a member mounted at each end of the mold c ap and movable therewith. an axially fixed member engaging each of said first members. and means for rotating said axially fixed members to advance and retract the first members. V

8. In a line-castin machine. the combination with a mold, mold cap and liners. of mechanism constituting both means for locking said cap in operative relation to the mold and to said liners and for adjusting said cap to permit replacement of said liners, said mechanism comprising a member mounted at each end of the mold cap and movable therewith. an axially fixed member engaging each of said first members, and means for simultaneously and synchronouslv rotating said axially fixed members to advance and retract the first-named members.

LEWIS GEISERT. 

